feat: 拆分 worker 架构并增强 assistant 安全保护

- 新增 daemon/channel/assistant/function/scheduler/logging worker 架构和 JetStream 消息协议

- 修复邮件通知误入 assistant、迁移 checksum、日志 subject 和工具调用无限循环风险

- 新增 assistant 工具轮次熔断、工具结果截断和提示词软收敛规则

- 补充邮件推送关键字、可信发件人配置、升级日志和验证测试

ias-daemon/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "ias-daemon"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+ias-common = { path = "../ias-common" }
+anyhow = "1"
+chrono = { version = "0.4", features = ["serde"] }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+tokio = { version = "1.0", features = [
+    "rt-multi-thread",
+    "macros",
+    "sync",
+    "time",
+    "process",
+    "signal",
+    "io-util",
+    "net",
+] }
+tracing = "0.1"
+libc = "0.2"
+
+[dev-dependencies]
+toml = "0.8"